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Linux System Administrator Contract Jobs in Missouri

System Administrator

Earth City, MO · On-site

$60K - $85K/yr

Maintain, monitor, and optimize physical and virtual server infrastructure (Windows/Linux ... Red Hat Certified System Administrator (RHCSA) Technical Skills Required: * Windows Server & Linux ...

Linux Systems Engineer

Springfield, MO · On-site

$120 - $165/hr

Overview Abile Group has an exciting and challenging opportunity for a Linux Systems Engineer on a 10 year contract providing User Facing and Data Center Services supporting an Intelligence Community ...

Linux Systems Engineer

Saint Louis, MO · On-site

$110 - $160/hr

Overview Abile Group has an exciting and challenging opportunity for a Linux Systems Engineer on a 10 year contract providing User Facing and Data Center Services supporting an Intelligence Community ...

Showing results 21-40

Linux System Administrator Contract information

What is a Linux system administrator contract?

A Linux System Administrator Contract job is a temporary or project-based role where an IT professional manages and maintains Linux-based systems for an organization. Responsibilities typically include server setup, system monitoring, troubleshooting, security management, and performance optimization. Contract positions may last for a few months to a year or more, depending on the employer's needs. These roles are often found in industries that rely heavily on Linux servers, such as cloud computing, finance, and cybersecurity. Contractors may work on-site or remotely and are usually compensated on an hourly or project basis.

What does a Linux system administrator contract do?

As a Linux System Administrator Contractor, you will typically be tasked with deploying, configuring, monitoring, and troubleshooting Linux servers to ensure optimal performance and security. Your daily work may include applying software updates, managing user accounts, automating processes with scripts, and responding to incidents or service requests. Contractors often work closely with development, DevOps, and IT security teams, providing technical support and collaborating to implement infrastructure improvements. Project assignments can vary widely based on the client’s needs, offering opportunities to work with cloud platforms, virtualization, and integrating new technologies.

What are the key skills and qualifications needed for a Linux system administrator contract?

To thrive as a Linux System Administrator Contract, you need strong expertise in Linux operating systems, shell scripting, server management, and troubleshooting, often supported by a degree in computer science or relevant experience. Familiarity with tools such as Ansible, Docker, VMware, and certifications like RHCSA or CompTIA Linux+ are highly valued. Excellent problem-solving abilities, attention to detail, and effective communication skills distinguish top performers in this role. These qualities are essential for maintaining system reliability, collaborating with teams, and meeting the fast-paced demands of contract assignments.

What are the most commonly searched types of Linux System Administrator jobs in Missouri?

The most popular types of Linux System Administrator jobs in Missouri are:

What are popular job titles related to Linux System Administrator Contract jobs in Missouri?

For Linux System Administrator Contract jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Linux System Administrator Contract jobs in Missouri look for?

The top searched job categories for Linux System Administrator Contract jobs in Missouri are:

What cities in Missouri are hiring for Linux System Administrator Contract jobs?

Cities in Missouri with the most Linux System Administrator Contract job openings:

System Administrator

Credit Control LLC

Earth City, MO • On-site

$60K - $85K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 10 days ago


Key responsibilities

  • Maintain, monitor, and optimize physical and virtual server infrastructure (Windows/Linux).

  • Support and improve virtualization environments (VMware, Hyper-V).

  • Provide Tier 2/3 support for service desk escalations.


Job description

Build Your Future with an Award-Winning Team at Credit Control! 

What if you could grow your career with a company that’s been recognized six consecutive years (2019–2025) as a Best Place to Work in Collections?


At Credit Control, our success starts with our people. We believe driven, dedicated team members are the foundation of everything we achieve—and we’re committed to rewarding that dedication with competitive pay, outstanding benefits, and meaningful growth opportunities.


About the Role

We are seeking a highly skilled and motivated System Administrator to join our IT Operations team at our Earth City, MO headquarters. This is a 100% on-premise position, ideal for a hands-on professional with strong system administration experience, particularly in on-site infrastructure and enterprise systems.

You’ll play a key role in managing our internal systems, supporting users, and contributing to infrastructure and security initiatives. The right candidate will be comfortable in a dynamic environment with varied responsibilities—from server management to application support.

Key Responsibilities

  • Maintain, monitor, and optimize physical and virtual server infrastructure (Windows/Linux).
  • Administer Active Directory, DNS, DHCP, Group Policy, and related core services.
  • Support and improve virtualization environments (VMware, Hyper-V).
  • Perform routine patching, backups, and system health monitoring.
  • Provide Tier 2/3 support for service desk escalations.
  • Create and maintain system documentation and SOPs.
  • Assist with endpoint management and software deployment.
  • Coordinate with security teams on vulnerability remediation and incident response.
  • Participate in after-hours upgrades, maintenance windows, and on-call rotations.

Requirements

  • 5+ years of experience in system administration roles in enterprise environments.
  • Bachelor’s degree in Computer Science or related field,
    OR relevant certifications in lieu of a degree.

Preferred Certifications (One or more):

  • CompTIA Server+, Network+
  • Microsoft Certified: Windows Server Hybrid Administrator Associate
  • Cisco CCNA
  • VMware Certified Professional (VCP)
  • Red Hat Certified System Administrator (RHCSA)

Technical Skills

Required:

  • Windows Server & Linux administration
  • Virtualization (VMware, Hyper-V)
  • Networking fundamentals (VLANs, TCP/IP, Firewalls)
  • Backup and disaster recovery systems
  • Scripting (PowerShell, Bash)

Preferred/Bonus Experience With:

  • Appgate SDP (or similar ZTNA solutions)
  • Microsoft 365 administration
  • Azure AD Sync / Hybrid identity
  • ConnectWise Service Manager or other RMM platforms
  • Endpoint protection (SentinelOne)
  • Vulnerability management (Rapid7)
  • Cisco Umbrella
  • PAM tools like CyberArk or similar

Schedule

  • Monday–Friday, standard 8-hour shifts
  • Availability for occasional nights/weekends for after-hours support, upgrades, or project work

Compensation & Benefits

  • Salary: $60,000 – $85,000 annually
  • Medical, Dental, and Vision coverage
  • Life insurance
  • Short Term & Long-Term Disability
  • Generous Paid Time Off, Vacation, and Holidays
  • Paid Bereavement Leave
  • 401(k) with Company Match
  • Professional Development Grant Program
  • Employee Assistance Program
  • Fun contests, prizes, and company events
  • Referral bonus program
  • ADP Lifemart employee discounts

Work Environment

  • This is a fully on-premise role located at:
    3300 Rider Trail South, Suite 500, Earth City, MO 63045
  • You’ll be working in a secure, team-oriented, and fast-paced environment that values reliability, accountability, and innovation.

How to Apply

Submit your resume and a brief cover letter. We look forward to learning more about how your experience aligns with our team’s goals.

Equal Opportunity Employer

Credit Control is an Equal Opportunity Employer. We value diversity and are committed to creating an inclusive workplace for all employees.